1
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The general solution of the equation $(\sqrt{3}-1) \sin \theta+(\sqrt{3}+1) \cos \theta=2$ is

A

$2 n \pi \pm \frac{\pi}{4}+\frac{\pi}{12}$

B

$n \pi+(-1)^n \frac{\pi}{4}+\frac{\pi}{12}$

C

$2 n \pi \pm \frac{\pi}{4}-\frac{\pi}{12}$

D

$n \pi+(-1)^n \frac{\pi}{4}-\frac{\pi}{12}$

2
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $\sin ^{-1}\left(\frac{12}{x}\right)+\sin ^{-1}\left(\frac{5}{x}\right)=\frac{\pi}{2}$, then $x=$

A

5

B

7

C

13

D

17

3
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \log (9+3 \sqrt{2}(2+\sqrt{5})+4 \sqrt{5})= $$

A

$\sinh ^{-1} 3+\cosh ^{-1}\left(\frac{1}{3}\right)$

B

$\cosh ^{-1} 3+\sinh ^{-1} 3$

C

$\tanh ^{-1} 3+\sinh ^{-1} 3$

D

$\cosh ^{-1} 3+\tanh ^{-1} 3$

4
TS EAMCET 2020 (Online) 10th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a $\triangle A B C,\left(b^2-c^2\right) \cot A+\left(c^2-a^2\right) \cot B=$

A

0

B

$2 R^2[\sin 2 A-\sin 2 B]$

C

$\left(b^2-a^2\right) \cot (A+B)$

D

$2 R^2[\tan 2 A-\tan 2 B]$

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